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CVE-2026-43148 powerpc/smp: Add check for kcalloc() failure in parse_thread_groups()

🗓️ 06 May 2026 11:27:30Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 49 Views

Fixed powerpc/smp parse_thread_groups by checking kcalloc() return value to prevent NULL dereference.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/powerpc/kernel/smp.c"
    ],
    "versions": [
      {
        "version": "790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2",
        "lessThan": "1de31dba19c3cd0c1caf388a286b46df638f0b91",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2",
        "lessThan": "b265e53d9adfbb5751713185843f7188aa9dd066",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2",
        "lessThan": "9d0ca11258e7b452653d04310addfec1753de1a2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2",
        "lessThan": "ca46d2092f307385a7acfb42632056570d6dbbbc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2",
        "lessThan": "9b85c8f624b0f8cf9b932f5a65dacd56a1f47a72",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2",
        "lessThan": "8b221db0b7d24675e465e98d9326d298025a4e8d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2",
        "lessThan": "33c1c6d8a28a2761ac74b0380b2563cf546c2a3a",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/powerpc/kernel/smp.c"
    ],
    "versions": [
      {
        "version": "5.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.202",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.165",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.128",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.16",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.6",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 22:18Current
EPSS0.00162
49